Cervicogenic Headache: The Forehead Sweating Pattern

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Abstract
Forehead sweating in 11 patients with cervicogenic headache was tested with the Evaporimeter. All were studied during heating experiments, 2 patients during exercise, and 10 patients after pilocarpine stimulation. Five patients were studied during spontaneous attacks. The evaporation during spontaneous attacks was symmetrical. This was also the case after heating, exercise, and pilocarpine stimulation. These findings differ clearly from the situation in cluster headache. These observations indicate that cervicogenic headache and cluster headache differ fundamentally with regard to autonomic involvement.